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化学学报
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化学学报 ›› 1965, Vol. 31 ›› Issue (1): 7-11. 上一篇    下一篇

论文

醇在铜铬氧化物上的催化脱氢——Ⅰ.伯醇

孙承谔, 王秀山   

  1. 北京大学化学系
  • 投稿日期:1963-07-05 发布日期:2013-06-03

CATALYTIC DEHYDROGENATION OF ALCOHOLS ON COPPER-CHROMIUM OXIDE Ⅰ. PRIMARY ALCOHOLS

SUN CHENG-E, WANG HSIU-SHAN   

  1. Chemistry Department, Peking University
  • Received:1963-07-05 Published:2013-06-03

PDF

574

被引次数

5

分子结构对醇催化脱氢速率的影响已有多人研究.最早,Palmer等曾研究各种醇在还原铜催化剂上的脱氢,找出在同样条件下所有伯醇的脱氢速率相同.而仲醇的脱氢速率约为伯醇五倍.同时,Constable还观察到在还原铜催化剂上乙醇、正丙醇、正丁醇、正戊醇的活化能相同.随后,Борк等在还原铜和沉淀铜上的脱氢研究也认为醇的烃基大小对活化能影响不大.Баландин及其同事研究在氧化物催化剂上各种结构醇的脱氢动力学.结果表明,取代基链的长短,基的形状和在醇中的位置不同皆影响脱氢的活化能.

The effects of dehydrogenation of ethyl, n-propyl, n-butyl, n-amyl and isobutyl alcohols on the copper-chromium oxide catalyst have been investigated.It has been found that the activation energies of dehydrogenation are almost equal and independent of the structure of the alcohols.But the specific reaction rates are not equal, increasing with the length of the hydrocarbon chain, and the rate of isobutyl alcohol being less than that of n-butyl alcohol.